Surgical Skin Markers. The best way to keep your perfectly drawn custom eyebrows in place while you work! These skin markers are fine tipped with long lasting, anti-fungal gentian violet ink for the safest and most durable permanent cosmetic procedure. Blueprint your design by adding purple dots to the outside edge of your pre-drawn eyebrow design. Allow to dry for 3 minutes before beginning work for the longest lasting results. Removes best with a 5 minute soak of RecoverAll or BlockAid anesthetic.